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Home >> Jeep >> 2011 >> Liberty Renegade, Part Time >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P0778-Shift Pressure Solenoid Circuit >> Possible Causes

Possible Causes

Possible Causes 
(T77) SHIFT PRESSURE SOLENOID CONTROL CIRCUIT OPEN
(T77) SHIFT PRESSURE SOLENOID CONTROL CIRCUIT SHORT TO GROUND
(T77) SHIFT PRESSURE SOLENOID CONTROL CIRCUIT SHORT TO ANOTHER CIRCUIT
SHIFT PRESSURE SOLENOID
TRANSMISSION CONTROL MODULE

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  Standard Procedure  . 

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